Planapochromatically-corrected microscope objective

US8988780B2 · kind B2 · utility

Assignee

• Carl Zeiss Microscopy GmbH · DE

Inventors

• Manfred Matthae · Jena, DE
• Georg Herbst · Oettingen, DE

Key dates

• Filing date: Oct 19, 2012
• Grant date: Mar 24, 2015
• Expiry date: May 16, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B27/005
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to a planapochromatically-corrected immersion microscope objective for high-resolution microscopy applications with changing dispersive immersion conditions, having a plurality of lenses and/or subsystems (T1, T2, T3) comprising lens groups and a corrective function (LA2) for eliminating spherical aberrations. According to the invention, the microscope objective has an additional corrective function (LA1) for eliminating longitudinal chromatic aberrations caused by dispersive changes in the immersion by changing the air gaps between the lenses or gap combinations, wherein the influence on the longitudinal chromatic aberration corresponds to a rotation of the curve s(λ), which describes the color point (s) as a function of the wavelength (λ).